CN-115377936-B - Short-circuit protection structure of atomizing device and atomizing device

CN115377936BCN 115377936 BCN115377936 BCN 115377936BCN-115377936-B

Abstract

The invention relates to a short-circuit protection structure of an atomization device and the atomization device, wherein the short-circuit protection structure of the atomization device comprises a cartridge, an MCU control module, a battery module, a unidirectional conduction device and an energy storage module, wherein the input end of the unidirectional conduction device is electrically connected with the output end of the battery module, and the output end of the unidirectional conduction device and the output end of the energy storage module are electrically connected with a power supply port of the MCU control module; when the cigarette bullet is in the suction state and the atomization device is in the abnormal short-circuit state, the battery module stops supplying power to the MCU control module, and the energy storage device supplies power to the MCU control module to enable the MCU control module to perform state identification and cut off heating of the cigarette bullet. According to the short-circuit protection structure of the atomization device, the unidirectional conduction device and the energy storage module are additionally arranged, so that the purpose of short-circuit protection is achieved.

Inventors

CHEN HONGTAI

Assignees

东莞市阿尔法电子科技有限公司
东莞市阿尔法电子科技有限公司

Dates

Publication Date: 20260421
Application Date: 20220726
Priority Date: 20220726

Claims (9)

1. The short-circuit protection structure of the atomization device is characterized by comprising a cigarette bullet, an MCU control module, a battery module, a unidirectional conduction device and an energy storage module, wherein the input end of the unidirectional conduction device is electrically connected with the output end of the battery module, and the output end of the unidirectional conduction device and the output end of the energy storage module are electrically connected with a power supply port of the MCU control module; when the cigarette bullet is in a suction state and the atomization device is in a normal working state, the battery module supplies power to the MCU control module in a unidirectional manner through the unidirectional conduction device, and the energy storage module is in a full-power state; When the cartridge is in a suction state and the atomization device is in an abnormal short-circuit state, the battery module stops supplying power to the MCU control module, and the energy storage module supplies power to the MCU control module, so that the MCU control module performs state identification and cuts off heating of the cartridge; The short-circuit protection structure of the atomization device further comprises a logic switch, a first voltage division module and a second voltage division module, wherein a power supply port of the MCU control module, the first voltage division module and the second voltage division module are respectively and electrically connected with the logic switch, an output end of the battery module is electrically connected with the first voltage division module, the second voltage division module is grounded, and an IO port of the MCU control module is electrically connected with the second voltage division module; when the cartridge is in a suction state and the atomization device is in a normal working state, the logic switch is closed, and an IO port of the MCU control module is grounded through the second voltage division module; When the cartridge is in a suction state and the atomization device is in an abnormal short-circuit state, the logic switch is turned on, and the power supply port of the MCU control module is grounded through the first voltage division module and the second voltage division module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module, and the MCU control module is triggered to cut off heating of the cartridge.
2. The short-circuit protection structure of an atomizer according to claim 1, wherein said unidirectional conduction means prevents the electric power of said energy storage module from flowing back to said battery module when said cartridge is in a suction state and said atomizer is in an abnormal short-circuit state.
3. The short-circuit protection structure of an atomizer according to claim 1, wherein said unidirectional current conducting means is a diode.
4. The short-circuit protection structure of an atomizer according to claim 1, wherein when the cartridge is in a pumping state and the atomizer is in a normal operation state, the voltage of the battery module is higher than the voltage of the power supply port of the MCU control module.
5. The short-circuit protection structure of an atomizer according to claim 1, wherein said first voltage dividing module comprises a first resistor; The second voltage dividing module comprises a second resistor.
6. The short-circuit protection structure of an atomizer according to claim 5, wherein the second resistor has a resistance ten times that of the first resistor.
7. The short-circuit protection structure of the atomizing device according to claim 5, wherein when the logic switch is turned on, the second resistor is connected in series with the first resistor to divide the voltage of the power supply port of the MCU control module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module.
8. The short-circuit protection structure of an atomization device according to claim 1, wherein the logic switch is a MOS tube.
9. An atomizer device comprising a short-circuit protection arrangement of an atomizer device according to any one of claims 1 to 8.

Description

Short-circuit protection structure of atomizing device and atomizing device Technical Field The invention relates to the technical field of electronic cigarettes, in particular to a short-circuit protection structure of an atomization device and the atomization device. Background The electronic atomizer, also called electronic cigarette, is a product which is driven by lithium polymer battery power, and is absorbed by a user after heating tobacco tar in a cigarette cartridge to change nicotine and the like into steam. Currently, each large brand of atomizer requires a constant power output to heat the cartridge, while maintaining a good user taste experience. However, due to the complex scene, dust/sweat, broken shell and other factors used by users, it is sometimes difficult to avoid that the circuit does not occur in the cartridge or the heating wire. In addition, the tobacco tar has the problem of leakage, and the phenomenon of short circuit is unavoidable under the long-term erosion of the leakage. Once a short circuit occurs, the battery can consume light rapidly, generate a large amount of heat, damage the battery cell and easily cause safety accidents. At present, the MCU control module (MCU for short) of many electronic cigarettes in the market directly provides power through a battery, and the MCU control module cannot realize LVD (Low Voltage detection function) or has no related register for status reading even reset, so as to judge the reason of reset. The short-circuit protection function is very limited by the chip. Disclosure of Invention Based on the above, the invention provides a short-circuit protection structure of an atomization device and the atomization device, and the purpose of short-circuit protection is achieved by electrically connecting a unidirectional conduction device between the MCU control module and the battery module and additionally adding an energy storage module. The short-circuit protection structure of the atomization device comprises a cigarette bullet, an MCU control module, a battery module, a unidirectional conduction device and an energy storage module, wherein the input end of the unidirectional conduction device is electrically connected with the output end of the battery module, and the output end of the unidirectional conduction device and the output end of the energy storage module are electrically connected with a power supply port of the MCU control module; when the cigarette bullet is in a suction state and the atomization device is in a normal working state, the battery module supplies power to the MCU control module in a unidirectional manner through the unidirectional conduction device, and the energy storage module is in a full-power state; When the cartridge is in a suction state and the atomization device is in an abnormal short-circuit state, the battery module stops supplying power to the MCU control module, and the energy storage device supplies power to the MCU control module, so that the MCU control module performs state identification and cuts off heating of the cartridge. In one embodiment, the unidirectional conduction device may prevent the electrical energy of the energy storage module from flowing back to the battery module when the cartridge is in the pumping state and the atomizing device is in the abnormal short-circuit state. In one embodiment, the unidirectional conducting device is a diode. In one embodiment, the short-circuit protection structure of the atomization device further includes a logic switch, a first voltage division module and a second voltage division module, wherein a power supply port of the MCU control module, the first voltage division module and the second voltage division module are respectively and electrically connected with the logic switch, an output end of the battery module is electrically connected with the first voltage division module, the second voltage division module is grounded, and an IO port of the MCU control module is electrically connected with the second voltage division module; when the cartridge is in a suction state and the atomization device is in a normal working state, the logic switch is closed, and an IO port of the MCU control module is grounded through the second voltage division module; When the cartridge is in a suction state and the atomization device is in an abnormal short-circuit state, the logic switch is turned on, and the power supply port of the MCU control module is grounded through the first voltage division module and the second voltage division module, so that the voltage of the IO port of the MCU control module is higher than the voltage of the power supply port of the MCU control module, and the MCU control module is triggered to cut off heating of the cartridge. In one embodiment, when the cartridge is in the pumping state and the atomizing device is in the normal operating state, the voltage of the battery module is higher than the voltage of the power supply port